CNRFC - Hydrology - Observed River/Reservoir Conditions

SOUTH FORK EEL RIVER - MIRANDA (MRNC1)

Latitude: 40.18º N	Longitude: 123.78º W	Elevation: 263 Feet
Location: Humboldt County in California		Bulletin Group: North Coast		River Group: North Coast

Action/Monitor: 27.0 Feet

Minor Flood: 33.0 Feet

Moderate Flood: 38.0 Feet

Major Flood: 42.0 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024	35,300	23.24	Jan 14, 2024
2023	51,700	28.16	Dec 30, 2022
2022	19,900	18.07	Oct 24, 2021
2021	10,000	14.14	Jan 13, 2021
2020	11,700	14.93	Jan 26, 2020
Historical High Stage/Flow Events (Period of Record - Oct 1939 to Present) - Ranked by Flow
1965	199,000	46.00	Dec 22, 1964
1956	173,000	42.70	Dec 22, 1955
1986	123,000	38.29	Feb 17, 1986
1982	123,000	34.79	Dec 19, 1981

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
47.0 Feet	Extensive and severe flooding of all areas along the river. Severe damage to roads, bridges and structures can be expected. US Highway 101 and Highway 254 (Avenue of the Giants) will likely be closed. All persons in the vicinity of the river should take appropriate actions to protect life and property.
45.0 Feet	Severe flooding of many communities and roads along the river can be expected. Numerous road closures are likely, possibly including US Highway 101 and Highway 254 (Avenue of the Giants). All persons in the vicinity of the river should take appropriate actions to protect life and property.
42.0 Feet	Extensive and severe flooding of many portions of the Avenue of the Giants, especially areas in the vicinity of Sylvandale, Myers Flat, Weott and Phillipsville. Expect numerous road closures in these areas.
38.0 Feet	Considerable flooding of portions of the Avenue of the Giants (Highway 254) in the vicinity of Sylvandale, Myers Flat and Weott, with numerous road closures expected. Minor flooding will begin along Phillipsville Road and adjacent low lying areas.
35.0 Feet	Considerable flooding of portions of Avenue of the Giants in the vicinity of Sylvandale, Myers Flat and Weott is likely. Expect closure Of Avenue of the Giants (Highway 254) in numerous locations.
33.0 Feet	Flooding of portions of the Avenue of the Giants is likely in the vicinity of Sylvandale, and the Myers Flat and Redwood Giants Trailer Park. Flooding is also possible near Weott.
30.0 Feet	Flooding of portions of the Avenue of the Giants may occur, especially in the vicinity of Sylvandale and the Myers Flat and Redwood Giants Trailer Park.
27.0 Feet	Flooding of portions of the Avenue of the Giants (Highway 254) is possible near Sylvandale.

Official 7 Day National Weather Service Forecast (CAZ106)

Today: Partly cloudy. Patchy valley fog in the morning. Highs 53 to 68.

Tonight: Partly cloudy. Patchy valley fog overnight. Lows 37 to 47.

Wednesday: Partly cloudy. Patchy valley fog in the morning. Highs 56 to 71.

Wednesday Night: Partly cloudy. Lows 37 to 47.

Thursday: Partly cloudy. Highs 61 to 76.

Thursday Night: Mostly cloudy. Lows 40 to 50.

Friday: Partly cloudy. Highs 62 to 77.

Friday Night: Mostly cloudy. Lows 41 to 51.

Saturday: Mostly cloudy. Slight chance of rain. Highs 53 to 68.

Saturday Night: Mostly cloudy. Lows 39 to 49.

Sunday: Mostly cloudy in the morning then clearing. Highs 58 to 73.

Sunday Night and Monday: Mostly clear. Lows 38 to 48. Highs 63 to 78.

Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Eureka Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.

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